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Question

If a bus covers 195 km in 3 hours and a train covers 300 km in 4 hours, then the ratio of their speeds is
(a) 13 : 15
(b) 15 : 13
(c) 13 : 12
(d) 12 : 13

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Solution

(a) 13 : 15

Speed = Distance
Time
Speed of the bus = 195 km = 65 km/hr
3 hr
Speed of the train = 300 km = 75 km/hr
4 hr
Ratio = 65 = 65 ÷ 5 = 13 = 13:15
75 75 ÷ 5 15

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